Question

GMAT club
A ladder 25 feet long is leaning against a wall that is perpendicular to level ground. The bottom of the ladder is 7 feet from the base of the wall. If the top of the ladder slips down 4 feet, how many feet will the bottom of the ladder slip?
(A) 4 (B) 5 (C) 8 (D) 9 (E) 15

Answer 1

Triplet will be 25,24,7 and when it slips by 4 feet it will be 25,20,15. Hence 15-7=8 Answwer